摘要:
Theme To inhibit the lens aberration in an objective lens for recording and reproducing optical information, which is composed of a molded aspherical single lens, while attaining at the same time good lens productivity, and also to ensure excellent optical properties and to obtain a high production efficiency in a mold processing step and a press molding step conducted to manufacture the lens. Means for Solving the Problems An objective lens 1 is a lens wherein a convex aspherical surface is formed at the first surface and a numerical aperture NA satisfies the condition, NA≧0.8. It is preferable to have an aspherical surface also at the second surface. A molding material that was premolded to a prescribed shape and is in a heated and softened state is press molded by using a pair of upper and lower molds having opposing molding surfaces, a molding surface shape is transferred by using a spherical molding material with a radius r and pressing the molding material between a pair of upper and lower molds, and the paraxial curvature radius R of the convex aspherical surface satisfies the following relation r/R≦1.35. The objective lens optical system comprises an objective lens 1 and a cover glass (CG) 2.
摘要:
A polyimide resin composition comprising a polyimide resin (A) and at least one 1H-tetrazole (B) selected from the group consisting of 1H-tetrazole, 5,5′-bis-1H-tetrazole, and derivatives thereof, and having an excellent rust preventing effect on copper and copper alloys.
摘要:
The invention relates to a photosensitive polyimide resin composition comprising (A) a polyamic acid having, in its main chain, repeating units formed from a polycondensation product of at least one tetracarboxylic acid or tetracarboxylic anhydride thereof with at least one diamine compound, and having actinic ray-sensitive functional groups at both terminals thereof; (B) a photosensitive auxiliary having a photopolymerizable functional group; (C) a photopolymerization initiator; and (D) a solvent, wherein 1 the polyamic acid is such that when the repeating unit represented by the formula (1) is defined as a unit molecular weight, a unit molecular weight per carboxyl group (unit molecular weight/COOH) falls within a range of from 200 to 300, and 2 the photosensitive resin composition permits the formation of a polyimide film having a residual stress of 40 MPa or lower and a coefficient of thermal expansion of 30 ppm/.degree. C. or lower on a substrate, and to said polyamic acid, a polyimide film having excellent film properties, and a pattern forming process using the photosensitive polyimide resin composition.
摘要:
A composition for forming a conductivity imparting agent comprising: (a) 0.1 to 20 parts by weight of sulfonated polyaniline having a content of a sulfonic acid group of 20 to 80% with respect to an aromatic ring of the sulfonated polyaniline; (b) 100 parts by weight of a solvent; (c) 0.01 to 10 parts by weight of an amine and/or quaternary ammonium salt; and (d) 0.001 to 100 parts by weight of at least one kind of a sulfonic acid group-containing component selected from the following (A) and (B); (A) compounds having a sulfonic acid group; and (B) polymers having a sulfonic acid group.
摘要:
This invention relates to a rubber photoresist composite which can be applied evenly on a large-sized or square-shaped baseboard and a method for producing a circuit board using thereof. A rubber photoresist composite of this invention comprises a photosensitive agent, a cyclized rubber and a solvent, said solvent including a solvent component having a boiling point ranging from 150.degree. C. to 220.degree. C. The rubber photoresist composite can be applied evenly on the baseboard rotated at a high speed by a spinner.
摘要:
Provided are photosensitive resin compositions comprising a polyamic compound having, at each terminal thereof, a specific actinic ray-sensitive functional group which has substituent groups each having a photopolymerizable carbon-carbon double bond, a photosensitive auxiliary having a photopolymerizable functional group and a solvent. The photosensitive resin compositions of the invention are excellent in resist properties such as sensitivity and good in storage stability and can provide a film small in residual stress.
摘要:
A high-energy radiation-sensitive pattern-forming resist material consisting of polysilsesquioxane having no hydroxyl group in its molecule. The pattern-forming material of this invention has an improved sensitivity to high-energy radiation exposure, a high resistance to dry etching, a high resolution capability, and an improved thermal stability.
摘要:
A cross-linkable positive-working ionizing radiation-resist or ultraviolet ray-resist polymer composition including: in polymerized form,(a) units derived from a methacrylic acid ester of the formula:CH.sub.2 .dbd.C(CH.sub.3).COOR where R is an alkyl or haloalkyl group having from 1 to 6 carbon atoms, benzyl or cyclohexyl,(b) units derived from a monoolefinically unsaturated carboxylic acid having from 3 to 12 carbon atoms and from 1 to 3 carboxyl groups, and(c) units derived from methacrylic acid chloride.The amount of the units (c) in the polymer composition is such that the number of moles of the units (b), multiplied by the number of the carboxyl group or groups in each of the units (b), ranges from about 1 to about 20% based on the total number of moles of the units (a), (b) and (c); the amount of the units (c) ranges from about 0.05 to about 3.0% by mole based on the total number of moles of the units (a), (b) and (c); and the molar ratio of the units (b), multiplied by the number of the carboxyl groups in each of the units (b), to the units (c) is greater than 2/1 but less than 250/1. The polymer composition is preferably in the form of either a copolymer having the units (a), (b) and (c), or a polymer blend of a copolymer comprised of the units (b) and a portion of the units (a) and a copolymer comprised of the units (c) and the remainder of the units (a). The resist polymer composition exhibits enhanced sensitivity as well as good thermal resistance, contrast and resolution.
摘要:
PCT No. PCT/JP78/00022 Sec. 371 Date July 7, 1979 Sec. 102(e) Date July 2, 1979 PCT Filed Nov. 6, 1978 PCT Pub. No. WO79/00284 PCT Pub. Date May 31, 1979A cross-linkable positive-working ionizing radiation-resist or ultraviolet ray- resist polymer composition including: in polymerized form,(a) units derived from a methacrylic acid ester of the formula:CH.sub.2 .dbd.C(CH.sub.3).COOR where R is an alkyl or haloalkyl group having from 1 to 6 carbon atoms, benzyl or cyclohexyl,(b) units derived from a monoolefinically unsaturated carboxylic acid from 3 to 12 carbon atoms and having from 1 to 3 carboxyl groups, and(c) units derived from methacrylic acid chloride.The amount of the units (c) in the polymer composition is such that the number of moles of the units (b), multiplied by the number of the carboxyl group or groups in each of the units (b) ranges from about 1 to about 20% based on the total number of moles of the units (a), (b) and (c); the amount of the units (c) ranges from about 0.05 to about 3.0% by mole based on the total number of moles of the units (a), (b) and (c); and the molar ratio of the units (b), multiplied by the number of the carboxyl groups in each of the units (b), to the units (c) is greater than 2/1 but less than 250/1.
摘要:
PCT No. PCT/JP78/00021 Sec. 371 Date July 2, 1979 Sec. 102(e) Date July 7, 1979 PCT Filed Nov. 6, 1978 PCT Pub. No. WO79/00283 PCT Pub. Date May 31, 1979A cross-linkable positive-working ionizing radiation-resist or ultraviolet ray-resist polymer composition comprising, in polymerized form,(a) from about 70 to about 99% by mole of units derived from a methacrylic acid ester of the formula:CH.sub.2 .dbd.C(CH.sub.3). COORwhere R is an alkyl or haloalkyl group having from 1 to 6 carbon atoms, a benzyl group or a cyclohexyl group,(b) from about 1 to about 20% by mole of units derived from methacrylamide, and(c) from about 0.05 to about 20% by mole of units derived from methacrylic acid chloride;each amount of the units (a), (b) and (c) being based on the total moles of the units (a), (b) and (c). The polymer composition is preferably in the form of either a copolymer comprised of the units (a), (b) and (c), or a blend of a copolymer comprised of the units (b) and a portion of the units (a) and a copolymer comprised of the units (c) and the remainder of the units (a). The resist polymer composition exhibits enhanced sensitivity as well as good thermal resistance, contrast and resolution.